staging: bcm2835-camera: Add spaces around '<<'

This patch fixes the checkpatch.pl issue:
CHECK: spaces preferred around that '<<' (ctx:VxV)

Signed-off-by: Narcisa Ana Maria Vasile <narcisaanamaria12@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>